Shuttle provided with a hand or automatic threading device



March 1927' c. BOURGEOIS 6 1 SHUTTLE PROVIDED WITH A HAND OR AUTOMATICTHREADING DEVICE Filed Oct. 20'. 1925 14/ VE/V TOR f'omsrmviiBoz/eas 1sHTTORMSYS longitudinal slot extending for Patented Mar. 15, 1927.

ooNsrAnr IBOURGEOIS, or Bonnie, salmon.

SHUTTLE PROVIDED WITH A HAND 0R AUTOMATIC THREADING DEVICE.

Application filed October 20, 1925, Serial No. 63,587, and in FranceNovember G, 1924.

My invention relates to "shuttles for weaving looms which comprise aweft yarn threading device of any known type.

It is an observed fact that the major part of the shuttles comprisingknown yarn threading devices, employed in hand-operated, power orautomatic looms, have upon one side a guiding slot which serves to bringthe yarn into the output eye; it is further observed that the outputorifice of the said eye is as a rule situated rearwardly of the outersurface of the cheek or lateral face of the shuttle, and to this effectthe said orifice opens flush with the bottom of a the major part of thelength of the outer surface of the said cheek or ment affording for thepart of the yarn issuing from the output eye a recess in which the saidpart of the yarn will be protected during the alternate displacement ofthe,

shuttle, along the bottom part of the loom lathe. I

But it frequently happens that this arrangement will facilitate theunthreading, due to the fact that the curled parts which are formed,when the shuttle commences to travel, upon the part of the yarn issuingfrom the output eye, will accumulate at the orifice of the said eye, sothat the yarn will ascend in the guiding slot and thus leave thethreading device with greater or less facility according to the type ofthreading device employed.

My invention has for its object to obviate this drawback whereof theconsequences are detrimental for various reasons, and it re lates toimprovements in shuttles of the aforesaid type. Said improvements arefurther applicable to shuttles in which the outer surface of the cheekor lateral face is unprovided with a longitudinal slot, and in which theorifice of the output eye is flush with the said surface.

Ihe aforesaid improvements will be described hereunder with reference tothe appended drawings in which:

Fig. 1 is a side elevation of the shuttle comprising my saidimprovements.

Fig. 2 is a cross-section of the cheek on the line Z- -Z ofcFig. 1.

Fig. 3 is a like cross-section on the line Y-Y of Fig. 1.

As in the ordinary type of shuttle, the present device includes thecheck or lateral face 1 in which is formed the guiding slot 2 lateralcheck, this arrangecommunicating with the' output eye 3 whose orificeopens flush longitudinal slot 4. k

In accordance with the present invention, at each side of the output eye3 and at a short distance therefrom there is formed within the slot at arecess 5 of suitable shape and area, the depth of which exceeds that ofthe said slot; the two recesses being connected together by a straightlongitudinal groove 6. The said groovepasses through and cuts the saidoutput eye, and its width is just sufficient to enable it to receive theyarn issuing from the said eye, being such that the bottom of the groove6, whereof the ends communicate with the reits depth with the bottom ofthe cesses 5, shall besubstantially at the same level as the bottom ofthe said recesses.

Due to my said improvements, it will be observed that the kinks ortangles of the yarn,.which are formed when the shuttle is moved across alathe from one box to another, will be lodged in one or the other of therecesses 5 according to the direction of motion of the shuttle and heldtherein be- 5 tween the cheek of the shuttle and adjacent side of theshuttle box, while another portion of the yarn is lodged in the adjacentportion of the groove 6. Y

By reason of its being held in said groove by engagement of the cheek ofthe shuttle with the side of a box, tangle in the groove, and as theshuttle is projected out of its box any tangle in either recess 5 willbe retained therein by contact with the side of the shuttle box andhence will be prevented from reaching said eye, thereby obviating thebreaking or unthreading of the yarn.

lVhat I claim is:

l. A shuttle for weaving looms having a longitudinal slot in one cheekand a lateral guide slot communicating with the first named slot andterminating at its outer end in' an outlet eye for the yarn, said cheekalso having recesses formed therein on opposite sides of said eye andwithin said longitudinal slot, and'said cheek further having alongitudinal groove extending through and on opposite sides of said eyeand into said recesses, said groove stantially equal to the thickness ofthe yarn so as to receive said yarn as it issues from the yarn will: not

being of a width sub- 2. shuttle for Weaving looms having a longitudinalslot in one cheek and a lateral guide slot communicating with the firstnamed slot and terminating at its outer end in an outlet eye for ,theyarn, said cheek also having; recesses fornied therein 'on oppositesides; of; said eye and Within said lone gitudinal slot, said recessesbeing of a greater. depth than said longitudinal slot,

10 and said cheek further having a longitudinal groove extending throughand on opposite sides of said eye and into said recess'es, said groovebeing of a Width sub

